#557ECA#557ECA

#557ECA is a mid, vivid blue. Relative luminance 0.211; OKLCH L 59.8% C 0.125 H 261.8°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#557ECA
RGB	rgb(85, 126, 202)
HSL	hsl(219, 52%, 56%)
HSV	hsv(219, 58%, 79%)
CMYK	cmyk(57.9%, 37.6%, 0%, 20.8%)
CIE-LAB	lab(53.08, 8.62, -43.76)
CIE-LCH	lch(53.08, 44.60, 281.15°)
OKLab	oklab(59.82% -0.0178 -0.124)
OKLCH	oklch(59.82% 0.125 261.8)
XYZ	xyz(21.8642, 21.1155, 58.7892)
Luminance	0.2112 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557ECA #CAA155

analogous

#55B9CA #557ECA #6755CA

triadic

#557ECA #CA557E #7ECA55

tetradic

#557ECA #CA55B9 #CAA155 #55CA67

square

#557ECA #CA55B9 #CAA155 #55CA67

split-complementary

#557ECA #CA6755 #B9CA55

monochromatic

#27457D #365FAC #557ECA #84A1D9 #B2C5E7

Accessibility & contrast

On white

4.02

#557ECA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.22

#557ECA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557ECA

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557ECA	#FFFFFF	#000000	##000000
##557ECA	1.00	4.02	5.22	5.22
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.22	21.00	1.00	1.00
##000000	5.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E85CD

Deuteranopia (green-blind)

#4F7AC8

Tritanopia (blue-blind)

#008F9A

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #557eca;
/* rgb */ color: rgb(85, 126, 202);
/* oklch */ color: oklch(59.8% 0.125 261.8);

Tailwind

colors: {
  custom: {
    50: '#8ea3da',
    500: '#557eca',
    950: '#000000',
  },
}

SCSS

$custom: #557eca;
$custom-light: #8ea3da;
$custom-dark: #000000;

JSON

{
  "hex": "#557eca",
  "rgb": {
    "r": 85,
    "g": 126,
    "b": 202
  },
  "hsl": {
    "h": 218.974,
    "s": 52.466,
    "l": 56.275
  },
  "oklch": {
    "l": 0.59815,
    "c": 0.12531,
    "h": 261.8
  },
  "luminance": 0.21117
}

Semantic roles & 50–950 ramp

primary

#557ECA

secondary

#D5C5A5

accent

#A94CDC

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #557ECA

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →